Cooking knife



FIG. 1 is a perspective view of a cooking knife showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a left side view thereof;

FIG. 8 is a right side view thereof; and,

FIG. 9 is an enlarged view of portion 9 shown in FIG. 7. 

CLAIM The ornamental design for a cooking knife, as shown and described. 